How hot tea connects with esophageal cancer

How hot tea connects with esophageal cancer

Drinkers of hot tea do not face an increased risk of esophageal cancer, but those who also consume excessive alcohol and smoke have five times higher risk than people who have none of the three habits.

Esophageal cancer kills about 400,000 people per year and is now the eighth most common cancer worldwide.

Observational studies like this can show links between factors - such as tea drinking and cancer - but can't prove that one causes another, as it's not possible to account for all the potential alternative explanations for the link. They were under study for more than 9 years.

A 2009 study from northern Iran's Golestan province which has among the world's highest rates of esophageal cancer had found that drinking hot tea -70 degrees C or higher - was associated with an eight-fold increased risk than drinking lukewarm tea - below 65 degrees C.

The researchers collected information about tobacco and alcohol consumption at the beginning of the study.

There was no increase in risk for those who only drank hot tea and did not smoke and/or drink.

"Irritating the lining of the esophagus could lead to increased inflammation and more rapid turnover of the cells", he said. Consuming burning-hot liquid is really not good for you.

"It's important to abstain from high-temperature tea in excessive alcohol consumers and smokers for oesophageal cancer prevention", Lv told TIME.

In a 2016 review in The Lancet Oncology, drinking beverages this hot was classified as "probably carcinogenic to humans". Only some of the studies in the review took alcohol and tobacco use into account. These results suggest that refraining from drinking hot tea may be advantageous for excessive smokers or users of alcohol.

The team suggests people be more careful of the temperature of their cup of tea especially if they smoke or drink regularly. "It's very, very hot".

Of course, it's not a good idea to repeatedly burn your mouth and throat with hot drinks of any sort, so drinking beverages at a sensible temperature is recommended to avoid injury.

Tea also has many health benefits.

However, a recent study from Peking University in Beijing, China, has found that the temperature at which tea is consumed could affect health - particularly in certain groups already at risk of negative health outcomes. In addition, for those who neither smoked nor consumed more than one alcoholic drink a day, there was no elevated risk.

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